[PATCH v2] elf: Implement filtering of symbols historically defined in libpthread

[H.J. Lu]

On Wed, May 5, 2021 at 1:17 PM Florian Weimer via Libc-alpha
<libc-alpha@sourceware.org> wrote:
>
> * Andreas Schwab:
>
> > When bison is rebuilt with a linker that contains binutils commit
> > b293661219c, it no longer crashes, and this patch isn't needed.
>
> Hmm.  I worry we need to preserve compatibility with old binaries.  Not
> everyone can do distribution bootstrap or has the source code to carry
> it out.

We never guarantee that applications linked against the old unversion
glibc work with the versioned glibc today.  Otherwise, we don't need
glibc version at all.

-- 
H.J.